Wrench.



J. SHERBINE.

WBENCH.

nruouon rLm nov. za, 1910.-

1,000,558. Patented Aug. 15, 1911.

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JAMES SHERBINE, OF MCKEESPOBT, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Patented Au 15, 1911.

Application filed November 28, 1910. Serial No. '594,511.

To all whom it may conccm:

Be it known that I, JAMES SHERBINE, a citizen of the United States, residing at McKeesport, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in VVrenches, of which the following is a specifcation reference being had to the accompanying drawings.

This invention relates to improvements in wrenches and has for its object to provide an extremely simple tool of this character wherein the various elements are compactly arranged so that the movable wrench jaw may be easily and quickly adjusted.

A further object of the invention is to provide a tubular body having a stationary jaw formed on one end, and an adjustable jaw provided with a shank for movement in the tubular body, said shank having rack teeth on one edge, and a looking element for engagement with the rack teeth to securely hold the aw in its adjusted position.

lVith the above and other objects in view, the invention consists of the novel features of Construction and the combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of a wrench constructedin accordance with the present invention; Fig. 2 is a longitudinal section of the same; Fig. 3 is a section taken on the line 3-3 of Fig. 2; and Fig. %i is a detail perspective view of the looking element.

Referring in detail to the drawings 5 designates the tubular body portion of the wrench which has formed upon one end a stationary aw 6. The movable wrench 7 is formed upon the end of the longitudinally adjustable shank 8 which is movably disposed in the tubular body member 5. This shank is provided upon one edge with the rack teeth 9 which are adapted to be engaged by a pin 10 movable through an opening ll formed in one wall of the tubular body. This pin is arranged upon or integrally formed with one end of a resilient bar 12, the other end of said bar being rigidly fixed to the side of the wrench body. The free end of the bar 12 is normally disposed in a recess 13 which is provided in the lower portion of the stationary jaw 6 so that. the bar lies in a plane substantially parallel with the longitudinal aXis of the wrench. A stud 14: is threaded into the resilient bar 12 to provide a fingerpiece whereby said bar may be moved outwardly to dispose the inner end of the pin 10 which is carried thereby out of contact with the rack teeth on the shank 8. The stud 14 is provided with a lateral extension as 'clearly shown in Fig. 3 which projects beyond one face of the tubular body member 5 so that the bar 12 may be moved outwardly by simply engaging this lateral extension with the thumb of the hand grasping the wrench. In this manner the movable jaw may be easily and quickly adjusted.

It is believed that the operation of the device will be obvious from the above description when taken in connection with the accompanying drawings.

In order to adjust the movable j aw 7 with relation to the stationary jaw 6, the upper free end of the bar 12 is moved outwardly in the recess 13 against the spring tension thereof to release the sliding shank 8. This shank is thenmoved by grasping the jaw 7 and pulling the same outwardly from the end of the wrench. After the desired space to receive the nut to which the wrench is to be applied, has been obtained, the spring bar 12 is released, whereupon the pin 10 which is carried thereby is 'forced inwardly through the opening 11 to again engage the rack teeth 9 of the shank. Said shank and the adjustable aw are thus seourely held against movement in the manipulation of the wrench to remove the nut.

The device is very simple in Construction and the parts thereof are compactly arranged, thus rendering the wrench eX- tremely durable.

It will be obvious that the device is also highly efficient in practical use and that the same can be manufactured at an extremely low cost.

Having thus described the invention what is claimed is:

The herein described wrench comprising, in combination, a rectangular tubular handle having a stationary wrench j aw formed on one of its ends, a shank longitudinally movable 'in said handle and provided with rack teeth on one of its edges, said shani: having a jaw integrally formed on one end opposed to the stationary jaw, said stationary jaw being provided with a recess the base of which forms a continuation of one of the walls of said rectangular tubular handle, said wall within the recess and between the sde walls thereof having an opening formed therethrough in line With the rack teeth on said shank, a reslent bar rigdly fixed to the handle at one end and having ts free end dsposed between the side walls of the recess of said statonary jew, a laterally eXtendng pin fixed in the free end of said har projeetng through the opening in the base of the recess and adapted to coact with the teeth on said shank to lock the movable j aw in its adjusted position, and a latemlly extendng finger-piece fixed to said bar and projectng beyond one face of the handle, substantally as and for the purpose specified.

In testmony whereof I hereunto afix my sgnature in the presence of two witnesses;

JAMES SHERBINE.

Gopes of this patent may be obtained for five cents each, by addressng the Commissioner of Patents, i

Washington, D. CP 

